"Doomsday Glacier" meaning in English

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  "lang_code": "en",
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          "name": "Antarctica",
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      "examples": [
        {
          "ref": "[2022 February 2, Ian Joughin, quotee, “Antarctica’s ‘Doomsday Glacier’ keeps scientists at bay with iceberg and sea ice”, in The Guardian:",
          "text": "Antarctica’s so-called Doomsday Glacier, nicknamed because it is huge and coming apart, is thwarting an international effort to figure out how dangerously vulnerable it is.",
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        "Synonym of Thwaites Glacier"
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        "(informal) Synonym of Thwaites Glacier"
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          "word": "Thwaites Glacier"
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  "word": "Doomsday Glacier"
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        "(informal) Synonym of Thwaites Glacier"
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